Earth Resistance and Resistivity Meters AMRU-200

The AMRU-200 Telometer from Amperis is the only meter on the market that implements all measurement methods: measurement can be carried out using the 2, 3 or 4 pole technical method, using the impulse method (4 / 10μs, 8 / 20μs, 10 / 350μs), measurements by the double clamp method without the need to place auxiliary electrodes and allows to measure the resistivity of the soil, as well as a pulse test.

It is important to highlight the version of the equipment with built-in GPS: the AMRU-200-GPS. The measurement GPS coordinates are stored in the device's memory, later they can be transferred to the computer with the USB cable. The advantage of this equipment with integrated GPS is that all the measurements are geolocated, knowing the coordinates of them, which is very useful when many measurements are made.

Measurement in the presence of interference voltage in the power network with frequency 16 2/3 Hz, 50 Hz, 60 Hz and 400 Hz (with automatic selection of proper frequency of measuring signal or with manual selection

Selection of maximum measuring voltage (25 V and 50 V)

Introducing the distance between the electrodes for the resistivity in metres (m) and feet (ft)

Memory of 990 measurements (10 banks of 99 cells each)

Calibration of clamp used

Real time clock (RTC)

Data transmission to the computer (USB, wireless)

Indication of battery state

Measurement of interference voltage UN (RMS)

Range

Resolution

Accuracy

0...100V

1V

±(2% m.v. + 3 digits)

Measurement of interference frequency

Range

Resolution

Accuracy

15...450Hz

1Hz

±(1% m.v. + 2 digits)

Measurement of continuity of equipotential bondings and protective conductors (Rcont)